Question

Can someone help me with this one?

Answer 1

which answers do you think are correct

Answer 2

Direct variation:

y = kx

Plug in what we know:

-21 = k(3)

-21 = 3k

Divide 3 to both sides, what's -21 / 3?

Answer 3

I think a and d but not sure thats y I need help

Answer 4

-7

Answer 5

Yes, that gives us:

y = -7x..which is the same as A..so A is correct.

Answer 6

thanks

Answer 7

However, D is not..

Answer 8

y = -7x

Divide 'x' to both sides.

Answer 9

b?

Answer 10

Correct.

Answer 11

thank u